Instructions Apple has stopped supporting OS X Yosemite. Problem There will be no more support provided for OS X Yosemite. New security updates for this operating system will not be provided anymore. This means that with time, it will become increasingly vulnerable to attacks from the internet. This is why we recommend that you stop using OS X Yosemite – especially if the device running that operating system is connected to the internet. Solution If you wish to continue using your computer and do not want to buy a new one, then you should install macOS High Sierra in order to guarantee the continued protection of your device. However, before doing anything, you should back up all your data because sometimes a new installation reformats the hard drive. The million dollar question, though, is if the hardware you own is adequate for this change. Our step-by-step instructions can help you. At your own risk To proceed, you need a special program. Please be aware that it is produced by a different manufacturer, so we are not responsible for its correct and error-free operation. Downloading and installing macOS Mojave In order to ensure the successful upgrade of your Mac to macOS Mojave, your computer must meet the following requirements: - The minimum RAM on your Mac must be 2 GByte. - There must be minimum 12,5 GByte's worth of free hard disk space. For further information, consult the Apple website: https://support.apple.com/en-us/HT201475 macOS Mojave cannot be installed on all Macs. If you have problems doing so, please consult an Apple specialist. Page 1 Downloading and installing macOS High Sierra If your Mac does not meet the requirements for macOS Mojave, you could try upgrading your device to High Sierra, the former version of the Mac operating system. For further information, consult the Apple website: https://support.apple.com/en-us/HT208969 macOS High Sierra cannot be installed on all Macs. If you have problems doing so, please consult an Apple specialist. Downloading and installing macOS Sierra If you have hardware or software that isn't compatible with macOS Mojave or macOS High Sierra, you might be able to upgrade to macOS Sierra. For further information, consult the Apple website: https://support.apple.com/en-us/ht208202 Page 2 Disclaimer Online security is a complicated matter: it is affected by many different factors that change on a daily basis. It is possible that in some cases, certain recommendations should not be applicable due to users' personal computer configurations; that the expected results do not correspond to users' expectations; or that some of the information contained is not correct. We are not liable for incompatibility problems with certain software programs, hardware, settings or other configurations or for the consequences thereof. Copyright The contents are subject to CORONIC GmbH's copyright and shall not be used or reproduced without prior written consent. All used trademarks and brand names are the proprerty of their respective owners. The usage of these trademarks and brand names is subject to the applicable legislation. March 2019 Page 3.